At present, the maximum temperature of the heat transfer oil heater on the market does not exceed 350 ° C, generally 250 ° C, 300 ° C, 350 ° C and other models.
The heat transfer oil electric heater uses a heat transfer oil as a heat carrier for indirect heat transfer. Because the heat transfer oil electric heater has uniform heating, accurate temperature control, high temperature generation under low vapor pressure, good heat transfer effect, energy saving, convenient transportation and operation, it has been widely used in various occasions in recent years.
The heat transfer oil used in the heat transfer oil electric heater is roughly divided into two types in the process: mineral heat transfer oil and synthetic heat transfer oil.
At present, the maximum temperature of the heat transfer oil electric heater can reach 350 °C. When the temperature is too high, the thermal polymerization reaction and the oxidation reaction of the heat transfer oil are accelerated to form coking, thereby affecting the service life of the heat transfer oil. The higher the temperature, the more intense the thermal polymerization and oxidation reaction of the heat transfer oil to form coking. For the design of a heat transfer oil electric heater with a temperature of 350 ° C, a nitrogen seal is also required to reduce the occurrence of carbon deposits.
In the design of heat-conducting oil electric heaters, it is necessary to consider the high temperature resistance of flanges, valves and piping, circulating pumps, etc., to prevent leakage of heat-conducting oil at high temperatures. In order to ensure the safe operation of the heat transfer oil electric heater, the high temperature resistant 400 °C high temperature cut-off valve and the heat transfer oil circulation pump are selected by Euroneng Machinery.
During the operation of the heat transfer oil electric heater, the leaky parts are often inspected. If it is found that no heat preservation measures are taken, the plugging measures should be taken in time; if the leakage caused by the heat preservation measures is taken, and the oil smoke is found, it should be immediately Remove the insulation material for plugging. If the leak is severe and cannot be effectively blocked, the system must be stopped for repairs or replacement parts. When dealing with leaks, clean up on-site combustibles and have fire-fighting equipment.